https://www.khanacademy.org/math/ka-math-class-11/x0419e5b3b578592a:probability-ncert-new/x0419e5b3b578592a:untitled-1179/v/all-about-events-overview 2025-03-01T15:52:37.13987578Z All about Events (overview) In this video, we'll give an overview of the topic 'Events'. What are they? How do we know when an event has occurred? How do we classify them? What are impossible and sure events? What are simple and compound events? Can we do algebra with events? What are mutually exclusive events? What are exhaustive events? Can events be both mutually exclusive and exhaustive? We find out all of this in the upcoming videos. Ashish Gupta video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw All about Events (overview) In this video, we'll give an overview of the topic 'Events'. What are they? How do we know when an event has occurred? How do we classify them? What are impossible and sure events? What are simple and compound events? Can we do algebra with events? What are mutually exclusive events? What are exhaustive events? Can events be both mutually exclusive and exhaustive? We find out all of this in the upcoming videos. https://cdn.kastatic.org/ka-youtube-converted/y0YQKrBWM-c.mp4/y0YQKrBWM-c.mp4 677 Event https://www.khanacademy.org/math/ka-math-class-11/x0419e5b3b578592a:probability-ncert-new/x0419e5b3b578592a:untitled-1179/v/formal-definition-of-occurrence-of-an-event 2025-03-01T15:52:37.13987578Z Formal definition of Occurrence of an Event We have a sense of what it takes for an event to occur. In this video, we'll look at the formal definition of the same. We say that an event has occurred if the outcome is a subset of the event. We'll practice this concept through some examples in this videos. Ashish Gupta video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Formal definition of Occurrence of an Event We have a sense of what it takes for an event to occur. In this video, we'll look at the formal definition of the same. We say that an event has occurred if the outcome is a subset of the event. We'll practice this concept through some examples in this videos. https://cdn.kastatic.org/ka-youtube-converted/BtZsDjC1k2E.mp4/BtZsDjC1k2E.mp4 267 Event https://www.khanacademy.org/math/ka-math-class-11/x0419e5b3b578592a:probability-ncert-new/x0419e5b3b578592a:untitled-1179/v/impossible-and-sure-events 2025-03-01T15:52:37.13987578Z Impossible and Sure events In this video, we'll learn how to classify events as impossible and sure. Some events will always occur. They're call sure events. Some events will never occur. They are called impossible events. At times, we need some basic math skills to figure out whether we're dealing are impossible or sure events. Ashish Gupta video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Impossible and Sure events In this video, we'll learn how to classify events as impossible and sure. Some events will always occur. They're call sure events. Some events will never occur. They are called impossible events. At times, we need some basic math skills to figure out whether we're dealing are impossible or sure events. https://cdn.kastatic.org/ka-youtube-converted/mCUPmevfy4M.mp4/mCUPmevfy4M.mp4 459 Event https://www.khanacademy.org/math/ka-math-class-11/x0419e5b3b578592a:probability-ncert-new/x0419e5b3b578592a:untitled-1179/e/impossible-vs-sure-events 2025-08-08T02:53:40.009522544Z Impossible vs Sure events Impossible vs Sure events Ashish Gupta exercise https://www.khanacademy.org/math/ka-math-class-11/x0419e5b3b578592a:probability-ncert-new/x0419e5b3b578592a:untitled-1179/v/simple-and-compound-events 2025-03-01T15:52:37.13987578Z Simple and Compound events This video will give us another way to classify events - simple and compound. The events that are made up of only one sample point are called simple events. They events that are made up of more than one sample point are called compound events. Let's look at a few examples and classify them to strengthen our understanding. Ashish Gupta video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Simple and Compound events This video will give us another way to classify events - simple and compound. The events that are made up of only one sample point are called simple events. They events that are made up of more than one sample point are called compound events. Let's look at a few examples and classify them to strengthen our understanding. https://cdn.kastatic.org/ka-youtube-converted/_MbSo2xigSs.mp4/_MbSo2xigSs.mp4 326 Event https://www.khanacademy.org/math/ka-math-class-11/x0419e5b3b578592a:probability-ncert-new/x0419e5b3b578592a:untitled-1179/e/simple-vs-compound-events 2025-08-08T02:53:40.009522544Z Simple vs Compound events Simple vs Compound events Ashish Gupta exercise https://www.khanacademy.org/math/ka-math-class-11/x0419e5b3b578592a:probability-ncert-new/x0419e5b3b578592a:untitled-1179/v/complementary-events 2025-03-01T15:52:37.13987578Z Complementary events This video covers what it means for events to be complementary. We use Venn diagram to build intuition. We also take note of notations used for complementary events. To strengthen the concept, we try finding complementary events for a variety of events observed when we roll a die. Ashish Gupta video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Complementary events This video covers what it means for events to be complementary. We use Venn diagram to build intuition. We also take note of notations used for complementary events. To strengthen the concept, we try finding complementary events for a variety of events observed when we roll a die. https://cdn.kastatic.org/ka-youtube-converted/vQQhebBIJmM.mp4/vQQhebBIJmM.mp4 401 Event https://www.khanacademy.org/math/ka-math-class-11/x0419e5b3b578592a:probability-ncert-new/x0419e5b3b578592a:untitled-1179/e/event 2025-02-27T12:31:05.94748833Z Event describe an event in a random experiment. srijan exercise